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Weekly Bulletin 12-day Event Forecast All Scheduled Events
Astrophysics and Relativity Seminars Atomic Molecular and Optical Seminars High Energy Physics Seminars
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Colloquia Archive

All Scheduled Events

September, 09/20/2014
Events and times subject to change

September 22, 2014 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag
Gia Dvali

Fast Scrambling



September 24, 2014 Wednesday 2:00 PM  +
Meyer 6th Floor Conference Room
Soft Condensed Matter Seminars (csmr)


Petia Vlahovska

Complex Fluid Interfaces in Electric Fields: Belted Drops, Patchy Membranes, and Vesicle Drums

I will present some of our recent experimental observations on ``complex’’ fluid-fluid interfaces - surfactant-laden and particle-covered drops, and vesicles (drops encapsulated with lipid bilayer membranes)- in uniform DC and AC electric fields. The coupling of the electric field induced flow and complex mechanics of the interface drives peculiar (and still to be explained) behaviors: drum-like or asymmetric dumbbell shapes of a vesicle; domain nucleation and dissolution in multicomponent membranes; particle assembly in dynamic vortices; drop wobbling. Implications to the design of patchy particles and electrorheology of emulsions will be discussed.


September 24, 2014 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Brian Henning
UC Berkeley

TBA



September 25, 2014 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Omar Hurricane
Lawrence Livermore National Laboratory

TBA



September 26, 2014 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Gail Zasowski
Johns Hopkins University



October 1, 2014 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Farinaldo Queiroz
UCSC

TBA



October 2, 2014 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Frank Shu
University of California

TBA



October 3, 2014 Friday 11:00 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Informal Astro Talk
Ken Chen
UC Santa Cruz

Supernova and Their Cosmological Implications



October 3, 2014 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Roman Rafikov
Princeton University



October 8, 2014 Wednesday 2:00 PM  +
Meyer 6th Floor Conference Room
Soft Condensed Matter Seminars (csmr)


Wilson Poon
University of Edinburgh

TBA



October 8, 2014 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Claudia Frugiuele
FNAL

TBA



October 9, 2014 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Nathan Seiberg
Institute for Advanced Study

TBA



October 10, 2014 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Luc Dessart
LAM (Marseille, France)

TBA (SN)



October 15, 2014 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Eliezer Rabinovici
Hebrew University

TBA



October 16, 2014 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Larry Abbott
Columbia University

TBA



October 17, 2014 Friday 11:00 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Informal Astro Talk
Jason Kalirai
Space Telescope Science Institute

Future space telescopes

Kalirai will discuss plans for the James Webb Space Telescope and the Wide Field Infrared Survey Telescope (WFIRST)


October 17, 2014 Friday 12:00 PM  +
Meyer 6th Floor Conference Room
Other Physics Department Events (other)

Physics Majors Fall Town Hall Meeting
David Hogg, Daniel Zwanziger, Bill LePage



October 17, 2014 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Jason Kalirai
STScI

The Stellar Graveyard of the Milky Way

In old stellar populations such as globular clusters and stellar halos, the bulk of the initial mass function beyond the current main-sequence turnoff resides on the white dwarf cooling sequence. This end state of stellar evolution is difficult to observe, given the intrinsic faintness of white dwarfs and their lack of nuclear energy sources. In this talk, I'll describe a new Hubble and Keck study to uncover and characterize faint populations of white dwarfs in a wide range of stellar systems with well established properties. In these environments, the masses and temperatures of the stellar remnants can be uniquely linked to the properties of their progenitors. This work has now led to the first global mapping of the initial-final mass relation -- a fundamental input into our understanding of the stellar evolution process for low and intermediate-mass stars. A robust initial-final mass relation enables many related astrophysical studies that were not previously possible. My team has used the relation to develop new and precise methods to date the Galactic halo and the oldest globular clusters from their cooling remnants, to calculate the lifetimes and luminosities of stars in key evolutionary phases such as the thermally-pulsing AGB, and to measure the mass loss and chemical yields from giant stars. In this talk, I will describe the past and future development of the initial-final mass relation, and how it has now provided answers to several outstanding astrophysical problems.


October 20, 2014 Monday 11:00 AM  +
Meyer 5th Fl. CCPP Lounge
Experimental Particle Physics Seminars (hep-ex)


Ning Zhou
UC Irvine

Dark matter searches at ATLAS



October 20, 2014 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag



October 22, 2014 Wednesday 2:00 PM  +
Meyer 6th Floor Conference Room
Soft Condensed Matter Seminars (csmr)


Kurt Kremer
Max Planck Institut

TBA



October 22, 2014 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Seyda Ipek
University of Washington

CP Violation in Pseudo-Dirac Fermion Oscillations



October 23, 2014 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Robert Johnson

TBA



October 24, 2014 Friday 11:00 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Informal Astro Talk
Angie Wolfgang
UC Santa Cruz

exoplanet populations and the mass-radius relationship



October 24, 2014 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Paul Sutter
Institut d'Astrophysique de Paris

From data to theory at the cosmic dawn

Understanding the epoch of reionization is extremely difficult due to significant observational challenges and only a vague theoretical picture of the underlying physical processes. Fortunately, in the past year there have been many developments that address these difficulties. As examples I will discuss HERA, a proposed radio interferometer designed specifically to observe this epoch, and a new semi-blind Bayesian method for foreground removal and signal recovery. Finally, I will present some ideas for extracting physically meaningful quantities from the upcoming measurements.


October 29, 2014 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Christopher Beem
IAS

TBA



October 30, 2014 Thursday 11:30 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Informal Astro Talk
Andreu Front
LBNL

Studying the Expansion of the Universe with BOSS quasars

After five years of observations, the Baryon Oscillation Spectroscopic Survey (BOSS) was finished in July. During these years, it has used the SDSS telescope to obtain spectra of 1.5 million galaxies to get very accurate measurements of the Baryon Acoustic Oscillations (BAO) scale at redshift z ~0.5. Roughly 20% of the fibers of the spectrograph, however, are pointing to high redshift quasars with the goal of detecting the BAO feature in the clustering of the intergalactic medium, using a technique known as the Lyman alpha forest. In this talk I will overview several recent results from the Lyman alpha forest working group in BOSS, including the measurement of BAO at z=2.4 both from the auto-correlation of the Lyman alpha absorption, and from its cross-correlation from quasars. I will also present preliminary results on the cosmological parameters constrains obtained when combining all BOSS BAO analyses with Cosmic Microwave Background and supernovae probes, including the most precise measurement of the current expansion of the Universe.


October 31, 2014 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Alyson Brooks
Rutgers University

Re-Examining Astrophysical Constraints on the Dark Matter Model

The cosmological model based on cold dark matter (CDM) and dark energy has been hugely successful in describing the observed evolution and large scale structure of our Universe. However, at small scales (in the smallest galaxies and at the centers of larger galaxies), a number of observations seem to conflict with the predictions CDM cosmology, leading to recent interest in Warm Dark Matter (WDM) and Self-Interacting Dark Matter (SIDM) models. These small scales, though, are also regions dominated by the influence of baryons. I will present results from high resolution cosmological galaxy simulations that include both baryons and dark matter to show that baryonic physics can significantly alter the dark matter structure and substructure of galaxies, revolutionizing our expectations for galaxy structure and influencing our interpretation of the Dark Matter model.


November 5, 2014 Wednesday 2:00 PM  +
Meyer 6th Floor Conference Room
Soft Condensed Matter Seminars (csmr)


Gi-Ra Yi
Korea Basic Science Institute

TBA



November 5, 2014 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Jay Wacker
Quora/Stanford University

TBA



November 6, 2014 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Zvonimir Dogic
Brandeis University

TBA



November 7, 2014 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Esra Bulbul
Harvard-Smithsonian Center for Astrophysics



November 12, 2014 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


John Terning
UC Davis

TBA



November 13, 2014 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Sharon Glotzer
University of Michigan

TBA



November 14, 2014 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


James Guillochon
Harvard-Smithsonian Center for Astrophysics



November 19, 2014 Wednesday 2:00 PM  +
Meyer 6th Floor Conference Room
Soft Condensed Matter Seminars (csmr)


Damon Clark

TBA



November 19, 2014 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Nemanja Kaloper



November 20, 2014 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Richard Gaitskell
Brown University

TBA



November 21, 2014 Friday 11:00 AM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

Informal Astro Talk
Yossi Shvartzvald
Tel Aviv University

Results from the OGLE-MOA-Wise Microlensing Survey

The discovery of thousands of extrasolar planets ranks among the most exciting scientific developments of the past decade. Among the techniques currently used to discover extrasolar planets, microlensing has some unique capabilities. It is the most sensitive technique to detect planets beyond the "snowline", where gas and ice giants are likely to form. Starting April 2011, we have begun a "second generation" microlensing survey, combining OGLE, MOA, and the Wise observatory. I will present a preliminary statistical analysis for the first three seasons of the survey. Over 10% of the events that were observed by all three sites showed a deviation from a single-lens microlensing, and for almost 1/3 of those the anomaly might be explained by a planetary companion. By accounting for our detection efficiency, we find a ~20-25% planetary system abundance, which is in line with previous microlensing estimates. Moreover, our results suggests that massive planets around low-mass stars are common, which may be in conflict with planetary formation scenarios. The data also can set constraints on the multiplicity fraction and the binary mass ratio distribution.


November 21, 2014 Friday 12:00 PM  +

Other CCPP (ccpp)

Big Apple Colloquium
David Charbonneau
Harvard-Smithsonian Center for Astrophysics



December 3, 2014 Wednesday 2:00 PM  +
Meyer 6th Floor Conference Room
Soft Condensed Matter Seminars (csmr)


Maxime Clusel

TBA



December 3, 2014 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Steen Hannestad
Aarhus University



December 4, 2014 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Paul Janmey
University of Pennsylvania

TBA



December 10, 2014 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Jared Kaplan
Johns Hopkins University

TBA



December 11, 2014 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Ali Yazdani
Princeton University

TBA



December 11, 2014 Thursday 5:30 PM  +
Meyer 6th Floor CSMR Area
Other Physics Department Events (other)

Physics Department Holiday Party

Light refreshments will be served.


December 12, 2014 Friday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
Astrophysics and Relativity Seminars (astro)


Christy Tremonti
University of Wisconsin, Madison

Constraining Galaxy Feeding and Feedback with MaNGA

A central issue in galaxy evolution is understanding the "baryon cycle," namely how gas is accreted onto galaxies and expelled in galactic winds. Gas flows are difficult to measure directly, but disk galaxy nebular oxygen abundance measurements can provide powerful indirect constraints. I will present some early work form the SDSS-IV MaNGA survey which will obtain spatially resolved oxygen abundance measurements of around 5,000 disk galaxies.


December 17, 2014 Wednesday 2:00 PM  +
Meyer 5th Fl. CCPP Lounge
High Energy Physics Seminars (hep)


Christoph Uhlemann
University of Washington

TBA



December 22, 2014 Monday 12:30 PM  +
Meyer 5th Fl. CCPP Lounge
Other CCPP (ccpp)

CCPP Brown Bag
Gia Dvali



January 29, 2015 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Alessandra Lanzara
UC Berkeley

TBA



February 4, 2015 Wednesday 2:00 PM  +
Meyer 6th Floor Conference Room
Soft Condensed Matter Seminars (csmr)


Yitzhak Rabin
Bar Ilan University

TBD



April 30, 2015 Thursday 4:00 PM  +
Meyer 122
Physics Colloquia (colloquia)


Marc Kamionkowksi

TBA